baber/WOPTO huggingface dataset:
Patent GB-424082-A (GB)
Title: Improvements relating to rotary transformers for direct electric current and to apparatus for use therewith
IPC: H02K47/16
Filed: 1933-11-15
Abstract: 424,082. Rotary transformers. PESTARINI, G. M., 4, Tapton House Road, Sheffield. Nov. 15, 1933, No. 31900. [Class 35] A " metadyne " transformer, i.e. a machine with four brushes bearing on a single commutator, two of them receiving a constant voltage supply and the other two delivering constant current while the speed of rotation is constant, is supplied with a regulating winding excited by a compound-wound generator mechanically connected to the metadyne, the series winding being disconnected while the regulator winding is in action and connected on disconnecting the regulating winding. Fig. 2 shows such an arrangement the regulating winding 4 of the metadyne 1, and the series winding 11 of the generator 2 being connected to a switch 8 acting as described. The generator may be provided with a second series winding in series with the winding 4, and a resistance may be inserted in the circuit of the shunt-winding 3 of the generator and short-circuited when the winding 4 is in circuit.
Patent GB-809123-A (GB)
Title: An improved metering valve for use on centralised liquid distribution systems
IPC: F16N25/02
Filed: 1954-11-04
Abstract: 809,123. Reciprocating pumps. WOLL, R. V. Feb. 3, 1956 [Nov. 4, 1954 ; April 4, 1955 ; April 22, 1955; May 23, 1955], Nos. 31904/54, 9711/55, 11656/55 and 14735/55. Class 102(1). [Also in Group XXXIV] A pump comprises a cylinder member A, Fig. 1, having a major cylinder 1 and a coaxial minor cylinder 2 in which works a differential piston B, the cylinders communicating at their outer ends with an alternating liquid supply. When liquid is supplied to cylinder 2 the piston is moved to the right and liquid passes by passages 8 and 9 to charge chamber 10 and by passage 6 to an annular groove 4. When pressure is supplied to the opposite side of the piston it causes the piston to move to the left and after passage 9 is closed by the cylinder 2 the annular groove 4 aligns with the outlet 3 and the liquid in chamber 10 is discharged past non-return valve C1. Several such pumps may be arranged in parallel forming a twin line system. In a modified form Fig. 3, once the chamber 28, passage 26 and annular groove 29 have been charged the liquid is by-passed via non-return valve 16 and passage 17, and on reversing the direction of flow, liquid is discharged through outlet 30 as above and when the piston opens passage 18 liquid is by-passed via passage 18, non-return valve 19 and passage 20. Several pumps of this type may be arranged in series forming a single line progressive system and each pump must function before liquid is by-passed to actuate the next pump in the line. The non-return valves may be omitted in which case a pump need not function before the subsequent pump. In further modifications the piston may be formed in two parts linked together and an indicator may be fitted to give visual indication of operation.
Patent GB-209893-A (GB)
Title: Improvements in teapots
IPC: A47J31/06
Filed: 1922-11-22
Abstract: 209,893. Bolton, E. M. Nov. 22, 1922. Pots.-A tea-pot is provided with an infuser so constructed that by rotating the lid the infuser can be cut off from the body of the pot when the tea is sufficiently drawn. The infuser consists of two cylinders D, E fitting one within the other and having similarly-disposed perforations. One cylinder D is attached to the lid, and the other E is provided with a stud g which engages a socket in the bottom of the pot and prevents the cylinder E from rotating. The openings in the cylinder D can be made to coincide with the perforations or with the solid portions of the cylinder E, as required, by rotating the lid and the cylinder D therewith. A stop limits the motion of the lid.
Patent GB-721521-A (GB)
Title: Improvements in electron-beam diffraction apparatus
IPC: H01J37/22
Filed: 1951-12-20
Abstract: 721,521. Electron microscope. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Dec. 17, 1952 [Dec. 20, 1951]. No. 31999/52. Class 39 (1). An electron beam diffraction apparatus permitting a structure image to be produced on a luminescent screen and on a photographic plate successively, is characterized in that. after removal of the luminescent screen from the image plane, a holder for the photographic plate is adapted to be moved by means of the support for the screen into the beam and held by the support, the radiation-sensitive layer of the photographic plate then occupying the same position as does the luminescent screen when providing a directly visible image. In the microscope shown in Fig. 1 electrons from a source 11 pass through the object, which is located in a holder 14 in a plug valve 6, and are focussed by magnetic lenses on to a luminescent screen 18 to give an image which may be observed through a window 19, which may be a magnifying glass. The support 24 for the luminescent screen is located in a chamber which communicates with the atmosphere through a valve 26 so that the support is pressed into contact with the edge 27 of the microscope chamber by atmospheric pressure. After the image has been focussed the chamber is exhausted through valve 26 and the support 24 can then be moved downwards against the pressure of the spring 28 and turned half a turn by means of the handle 30. As shown more clearly in Fig. 2, the support 24 is provided with an upright pin 32 extending into a slot 33 of the holder 22 for the photographic plate 21 so that moving the support 24 downwards and rotating it brings the photographic plate into the path of the beam. After the exposure has been made the plate may be moved back into the chamber 23 and the valve 26 opened to admit air; the chamber 23 may then be moved and the'photographic plate replaced by a fresh one. During the displacement of the plate it may be desirable for the beam to be switched off or interrupted, and the switching of the beam may be effected automatically when the support 24 is axially displaced.
Patent GB-1427268-A (GB)
Title: Impregnated auxiliary electrode for static or fluidized-bed- electrode system
IPC: C25C7/00
Filed: 1974-07-19
Abstract: 1427268 Particulate electrode electrolysis cells NORANDA MINES Ltd 19 July 1974 [13 Aug 1973] 32137/74 Heading C7B An electrolytic cell having a static or fluidizedbed particulate electrode is provided with an auxiliary electrode for insertion into the particles, comprising a conductive base into which is partially embedded a non-conducting screen whereby in use the particles are insulated from the conductive base. The base may be a sheet of Pb or Pb alloy into which is pressure rolled an organic fabric of nylon, polyester, polyethylene, polypropylene or PTFE and of which the mesh size preferably is not more than half the particle average size. These particles may be of 100- 1000Á dia and be of metal optionally as a coating on glass or plastics. The cell shown, which may be used for Cu electro-winning, has a perforated screen, e.g. of polyethylene or polypropylene, supporting particles 25 which are fluidized by upward electrolyte flow. Chamber 38 communicates via mesh 40 with the cell interior for electrolyte outflow. A plurality of anodic feeders 32 extends into the particles, the auxiliary cathodic electrodes being shown at 30.
Patent GB-1075849-A (GB)
Title: Improvements in or relating to shears and the like
IPC: A01G3/02
Filed: 1965-07-27
Abstract: 1,075,849. Shears. M. S. WHITBY. July 4, 1966 [July 27, 1965], No. 32146/65. Heading B4B. The blades of a pair of garden shears are provided with notches 19, the notches of one blade being staggered relatively to those of the other blade when the blades are closed. The notches may be of V- shape or U-shape and may each be # inch deep and 1/ 4  inch wide at the mouth. Alternatively, there may be four or six notches in each blade.
Patent GB-1398437-A (GB)
Title: Moving coil instruments
IPC: G01R5/04
Filed: 1972-07-10
Abstract: 1398437 Measuring angular displacements; moving coil instruments GEORGE KENT Ltd 9 July 1973 [10 July 1972] 32207/72 Headings G1N and G1Q The angular displacement of the rotor of a moving coil meter is determined by a differential capacitor whose moving electrode is the metal bobbin 15 (Fig.3) on which the moving coil is wound and whose fixed electrodes are partcylindrical plates 16-19 attached to the cylindrical faces of the magnet poles 12, 13 through an insulating layer 20, the pairs of plates 16, 17 and 18, 19 being separated by diagonal slits to produce a differential action with displacement of the moving electrode 15. The central cylindrical magnetic member 14 is fed with A.C., and the current to each pair of opposing electrodes 16, 19 and 17, 18 is sensed by a transistor 22, 23 respectively, the difference being indicative of the angular displacement.
Patent GB-1191220-A (GB)
Title: Process and apparatus for carrying out chemical reactions
Inventor: WALLER JAN
IPC: B01J8/22
Filed: 1968-07-05
Abstract: 1,191,220. Gas/liquid fluidised bed catalytic reactor. SHELL INTERNATIONALE RESEARCH MAATSGHAPPIJ N.V. 5 July, 1968, No. 32239/68. Heading B1F. [Also in Division C5] In a gas/liquid fluidised bed catalytic reactor, Fig. 1, oil to be desulphurised from heat exchanger 4 and furnace 7 is introduced at 8 and passes up through reactor 9 together with hydrogen gas from 11 through perforated gas distributors 10, 17 and 24 and fluidised catalyst beds 14, 19 and 27 supported on grids 12 covered with a wire mesh screen and ceramic balls 13, 20 and 26. Hydrogen is introduced via 21 and 20. Cooling quench oil is introduced at 16 and 21. Desulphurised product leaves at 36 and hydrogen is recycled via 11. The gas distributors 10, 17 and 24 comprise an upper horizontal perforated plate, a lower horizontal plate and chimneys passing through the distributors.
Patent GB-1424327-A (GB)
Title: Moulded products
IPC: B29C70/66
Filed: 1972-07-11
Abstract: 1424327 Moulding foam articles KAYMETZELER Ltd 10 July 1973 [11 July 1972] 32264/72 Heading B5A In a method of producing foamed articles, e.g. packaging materials, polystyrene particles are admixed with particles of scrap polyurethane foam, and the mixture steam heated in a mould to form a coherent mass. The polystyrene may be expanded or non-expanded beads or scrap. Instead of polyurethane foam, particles of sponge rubber, or polyvinyl chloride foam may be used. Either or both of the particulate materials may be coated with an adhesive such as polyurethane prepolymer or acrylic resin before moulding. The use of polyurethane or other foam particles facilitates passage of steam through the mixture in the mould.
Patent GB-410815-A (GB)
Title: Improvements in or relating to electric coupling elements
IPC: H01R33/94
Filed: 1932-11-16
Abstract: 410,815. Plug couplings; two-part couplings. COOK, C. R., Chesworth, Horsham, Sussex. Nov. 16, 1932, No. 32425. [Class 38 (i).] In a coupling of the type having pin contacts 3 and a bayonet-plug 4 for alternative use, the contacts not required being covered by a screwed cap 7, the insulating barrel carrying the contacts is in two moulded parts 1, 2 drawn together by a screw 10 and has a longitudinal groove 25 at one side for receiving the flex. The part 1 has the conducting stems 14 embedded in it during moulding. Each stem 14 is turned from a square section rod, the end terminal 13 being left full section and off-set, and the contacts 6 may be turned from oval section stock, a spigot being formed thereon that is a force-fit in a socket formed in the stem 14. A small projection is left on the face of the contact 6 to enter a hole 21, Fig. 7, in the mould in which the body part 1 is formed, the stem being further supported by a boss 22 that forms a hole 23 in the body and carries a pin that enters the hole designed for the clamping screw 24. The mould is made in two halves that separate on the plane 20-20. The pins 3 may be integral with the stems 14 or may be pressed against the heads 13 by H- shaped members 39 lying in recesses in the surface of the part 2. The flex attached to the terminal heads 13 is bent round a pair of studs 27. The Provisional Specification refers to Specification 403,448 and suggests that instead of the cap a tubular shield may surround the mouldings and be longitudinally movable to uncover either set of contacts.
Patent GB-255719-A (GB)
Title: Improvements in excavators
IPC: E02F9/20
Filed: 1925-12-23
Abstract: 255,719. Marks, E. C. R., (Harnisch feger Corporation). Dec. 23, 1925. Scoop-arm machines.-The scoop arm of an excavator is operated from a constant-speed, non-reversible motor through a power-transmitting member which is loosely mounted on a shaft on which is also arranged means for connecting said member with said motor for driving the member in either direction. The scoop arm comprises metal-faced wooden arms 7, Fig. 1, straddling the boom 3 and guided in saddle blocks 16 pivoted on a shaft 14 which carries pinions engaging racks 13 on the arms 7 and is driven by a chain 31 from a sprocket-wheel 29, Figs. 4 and 5. The sprocket-wheel 29 is loosely carried by a. shaft 30 which is driven in constant direction by the motor 27 through a fixed gear 33 and carries also fast and loose gears 34, 35 respectively. The gear 33 carries a clutch band 43 which is operated by a hand-lever 50, links 49, 48, a slidable cone 47, and a lever 44 to drive the sprocket-wheel 29 in one direction. Depression of a foot lever 56 acts through a link 55 and rock shaft 53 to apply a clutch band 51 to hold the sprocketwheel 29 against rotation, while when a clutch band 58 locks the loose gear 35, the sprocket wheel is reversely driven through the gear 34 and planet gears 37, 38; the clutch band 58 is operated by a weight 64 through a crank 65 and rock shaft 62, the weight being connected by lever 66 and link 67 to the foot lever 56, whereby depression of the latter to operate the band brake 51 also effects release of the clutch band 58. A spring pawl 69 engages a shoulder on a fixed plate 71 to hold the foot lever 56 in mid-position with the band brake 51 and band clutch 58 out of operation. The scoop arm is hoisted by a cable 72 and a drum 75. the latter being connected to its driving gear 76 by a band clutch operated similarly to the band clutch 43. The boom 3 is provided with braces 4 and is adjusted by cable 9 and drum 10. In a modification, Fig. 6, the sprocket &c. 97 controlling the scoop arm is driven in one direction by a band clutch 85<a> carried by a driving gear 82, is locked by a band brake, and is driven in reverse direction by operating a clutch band 94 to lock a drum 86 carrying planet gears 85 engaging a gear 83 fixed to the driving shaft 81 and an internal gear 84 fixed to the sprocket &c. 97. The clutch and brake bands are controlled as before and the planet gears are removable through the drum 86.
Patent GB-1024622-A (GB)
Title: Two-terminal solid state devices having a current-controlled negative-resistance characteristic
IPC: H01L29/00
Filed: 1962-09-19
Abstract: 1,024,622. Semi-conductor devices. RADIO CORPORATION OF AMERICA. Sept. 19, 1962 [Sept. 19, 1961], No. 32494/62. Heading H1K.  A two-terminal negative resistance device comprises a semi-conductor body with an intrinsic or near intrinsic region (e.g. resistivity greater than 1 ohm/cm.) with electrodes bonded to each of two major surfaces, the work function of the body adjacent the electrodes being higher and lower respectively, than that of the adjacent electrode; a P or N-type region may be provided between an electrode and the intrinsic region. The semi-conductor material may consist of germanium, silicon, IIIa, Vb such as gallium arsenide, or IIa, VIb such as cadmium sulphide. Fig. 1 shows a body 21 of 10 ohm/cm, intrinsic germanium with a thin 100  N+ region 23 having about 10<SP>19</SP> atoms per c.c. of arsenic impurity, through which tunnelling may occur. A first metal electrode 25 (the anode) formed of gold, platinum, or other low electromotive series metal, is bonded to layer 23 and a second " cathode " electrode 27 of tin or other metal is bonded to the other face of body 21. The voltage-current characteristic comprises a current controlled negative resistance portion as shown in Fig. 2. If electrode 25 is biased positively, holes are injected from electrode 25 and electrons from electrode 27; when the electrons arrive at the tunnel junction they tend to counter the space charge effect of the injected holes thus promoting further injection and providing a regenerative effect which gives rise to the negative resistance portion. This continues until the current reaches a level at which the potential energy maximum for electrons near the cathode (the virtual cathode) or for holes near the anode disappears so that positive resistance is resumed. It is stated that by varying the concentration of impurities in the N+ barrier region, the shape of the curve may be varied. A second embodiment (Fig. 8, not shown) is similar to Fig. 1 except that there is no N+ region. The anode electrode is of a metal such that the Fermi level lies. a little above the top of the valence band of the semi-conductor body while the cathode is of a metal such that the Fermi level lies below the conduction band and closer thereto than is the anode to the valence band. This gives an energy diagram as shown in Fig. 9a. When a voltage is applied the electric field in the region adjacent the anode is increased by the flow of holes from the anode which leads to further injection of holes and thus regenerative action and a negative resistance region.
Patent GB-1511533-A (GB)
Title: Process for producing chloroprene polymer latex
IPC: C08F2/24
Filed: 1975-08-04
Abstract: 1511533 Polymerizable emulsifiers for chloroprene polymer poduction TOYO SODA MFG CO Ltd 4 Aug 1975 [6 Aug 1974] 32526/75 Heading C3P Chloroprene polymer latexes having good freeze stability are produced by polymerizing in aqueous emulsion in the presence of a polymerizable emulsifier of general formula wherein R is C8-22 alkyl, Q is C2-8 alkylene, and X is H, alkali metal, an ammonium group on a substituted ammonium group. In the examples, the following specific reactive emulsifiers are used; sodium monotridecyl maleinoxybutane sulphonate, sodium monolauryl maleinoxybutane sulphonate, monotridecyl maleinoxy pentane sulphonic acid and ammonium monotridecyl maleinoxy butane sulphonate. The amount of such compounds used is small, usually 0À1-10 wt. per cent of the total monomers. Reference has been directed by the Comptroller to Specification 1,427,789.
Patent GB-990201-A (GB)
Title: Improvements relating to gauges
Inventor: REWBURY LEONARD LAWRENCE
IPC: G01B5/255
Filed: 1962-08-24
Abstract: 990,201. Measuring dimensions; wheel alignment gauges. TAYLOR & OSBORNE Ltd. July 11, 1963 [Aug. 24, 1962; Dec. 18, 1962], Nos. 32532/62 and 47834/62. Headings G1N and G1X. A track gauge (Fig. 1) comprises a beam having two telescopic members 10, 11 two probes 23 (for engagement with a vehicle wheel when measuring "toe in" or "toe out" thereof) one probe being movable relatively to the beam and having means 32 indicating its position, and one beam member 10 carrying a spring loaded clamp releasably engaging the other member 11. The movable probe may operate a pointer 32, adjustable for zero in slot 33, over an arcuate scale 36, or may alternatively move a wiper over a resistance track constituting two arms of a remote Wheatstone Bridge, to which it is connected by cable and jack 38, 39. A circular potentiometer may alternatively be provided at the bearing position 30 and a protective microswitch 40 may be included. The probes each include a disc 22 to prevent excessive deformation of the tyre by the point 23, and the mounting spindle 25, which is detachable from the housing 21, includes a ball or other semi-universal joint. The spring clamp may comprise a knurled wheel 15 forces against member 11 by a spring 14 acting on a lever 13 which pivots about a bearing 12, while the handwheel 17 turns a wheel 15 against the retaining friction of interleaved cork and metal washers 18, 19 (Fig. 2 not shown), to provide fine adjustment of beam length. Coarse changes are made by depressing lever 13 to disengage the wheel 15. The wheels 42 enable the vehicle and gauge to be run forward from one measuring position to a second 180 degrees removed therefrom.
Patent GB-1480665-A (GB)
Title: Dust and fire control in mining
IPC: E21F15/00
Filed: 1975-08-04
Abstract: 1480665 Goaf stowing CHEMISCHE FABRIK KALK GmbH 4 Aug 1975 [22 Aug 1974] 32537/75 Heading E1F Dust is controlled and the danger of fire is reduced during the packing of a gob area in a mine by moistening the gob area and/or the gobbing material using a hygroscopic salt as a moistening agent. The salt, e.g. calcium chloride and/or magnesium chloride, may be mixed in a finely divided, solid form with the gobbing material or may be sprayed as an aqueous solution containing 0.2-35% by weight of salt over the gobbing material and/or the gob area. A non-ionogenic wetting agent may be added in an amount of 2-5% by weight, based on the anhydrous salt, to the solid hygroscopic salt and/or an aqueous solution thereof.
Patent GB-262605-A (GB)
Title: Improved method of and means for waterproofing textile and other materials
IPC: D06M13/224
Filed: 1925-12-24
Abstract: 262,605. Moreton, C. J., and Waterproofers (Moreton's Process), Ltd. Dec. 24, 1925. Emulsions, making.-A waterproofing-composition comprises a soap-like emulsion in combination with Karaya gum. The emulsion may be formed by making a soap of palm oil, tallow, glycerine, borax, and liquid ammonia. Karaya gum soaked to a jelly is heated with liquid ammonia to produce a slime, to which water is added. Hard wax, such as carnauba or paraffin or a mixture of the two, is boiled with the soap and gum slime added, the whole being passed through an emulsifying machine.
Patent GB-185684-A (GB)
Title: An improved system of low temperature carbonisation
IPC: C10B47/18
Filed: 1921-12-05
Abstract: 185,684. Yeadon, J. A. Dec. 5, 1921. Coking processes.--In the low temperature carbonization of coal, finely ground coal, dried and partially heated, is fed continuously in a spray through a vertical retort having on its internal surface vertical corrugations extending for its full length. The working temperature is between 400 and 700‹ C. and the mechanical feeder having revolving and adjustable knives is heated by waste heat from the retort flues or by a steam jacket. A revolving breaker at the end of the feeder sprays the fuel into the retort. A discharging watercooled cylinder working continuously is arranged at the bottom of the retort. Specifications 114,971 and 127,986 are referred to.
Patent GB-486090-A (GB)
Title: Improvements in or relating to the production of coated frozen confection or frozen food products
IPC: C02F1/00
Filed: 1936-11-27
Abstract: A method of producing coatings on frozen confections or frozen food products consists in applying thereto a mixture essentially comprising solid anhydrous dextrose and a saturated or slightly supersaturated solution of dextrose hydrate.  In preparing the coating mixture 300 parts by weight of anhydrous dextrose; 50 parts of corn syrup; 2 parts of powdered dextrose hydrate; 105 parts of water are made, at room temperature or slightly above, into a fondant, and 220 parts of dextrose (hydrate or anhydride); 130 parts of water; 100 parts of cocoa and 1 part of salt are heated in a boiler until all the sugar is in solution.  This solution is added while still warm to the fondant together with a dispersion of 15 parts of gelatin in 100 parts of water.  If the mixture is too viscous for dipping at the working temperature of about 86 DEG  F., it is warmed to 95-104 DEG  F. and then cooled quickly to 86 DEG  F. After dipping, the products are cooled at the temperature of dry ice until hard enough to handle.  When the coating is applied, the anhydrous dextrose goes into solution and re-crystallizes, to form the solid coating, as the hydrate.  The crystallization is initiated by the small quantity of added powdered dextrose hydrate.  In another example of suitable proportions; fat is added to the mixture, as well as colouring matter and flavouring substances such as vanilla, lemon, orange, almond.